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A: Displacement: Displacement is the smallest distance between two points. It is a vector quantity.
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- A care package is dropped out of a cargo plane and lands in the forest. If we assume the care package speed on impact is 54 m/s (123 mph), then what is its acceleration? Assume the trees and snow stops it over a distance of 3.0 m.A ball dropped from a height of 30 cm, takes 0.6067 s to reach the ground. What is the acceleration due to gravity (g) at that place in S.I. units ? Select one: O a. 1.63 O b. 163 O c. 0.988 O d. 9.8If a car changes speed from 50 mph to 54 mph in one minute, its average 5 points acceleration is at. (a is equal to acceleration, t is time, vf is final velocity and vi is the initial velocity). (The equation for acceleration is Vf=Vi + a. 50 mph/minute O b. 52 mph/minute O c. 54 mph/minute O d. 4 mph/minute
- A ball dropped from a height of 30 cm, takes 0.6067 s to reach the ground. What is the acceleration due to gravity (g) at that place in S.I. units ? Select one: O a. 163 O b. 1.63 Oc. 9.8 O d. 0.988 The time of fall (t) of a free falling object is directly proportional to the height (h)chrome O000 4.) After six hours, a hiker descended 500 feet At what rate did the hiker climb (in feet per hour)? A. 500 500 500 C. 500 6. D.A car pulls away from a stop sign with a constant acceleration. After traveling 10 m, its speed is 5 m/s. What will its speed be after traveling 40 m?A. 10 m/s B. 20 m/sC. 30 m/s D. 40 m/s
- A speedboat increases its speed uniformly from 20 m/s to 30 m/s over a distance of 200 m. The acceleration of the boat is O a. 2.5 m/s O b. 1.25 m/s? Oc. 0.025 m/s? O d. 0.05 m/s46. What is the approximate braking distance for a car traveling at 75 mph once the brakes are applied? (Use s²/20 to calculate distance in feet.) A. 281.25 miles B. 1,485,000 feet C. 14 feet D. 1/20 mile1. Consider the following physical quantities and determine which physical quantity of interest they represent: velocity, speed, or acceleration a. 980 m/s² b. 30 m/s-sur c. 30 m/s 2. Represents a vector quantity: a. 8 centimeter b. 100 meters wwmmm c. 100 meter, north d. 30 meters/seconds
- A certain body moves along a straight line according to the laws s= t^3+8t^2-2t (s in feet and inseconds). Find its acceleration at the end of 3 seconds.A. 34 ft/s?B. 93 ft/s?C. 28 ft/s?D. 73 ft/s?Assignment Booklet 4A 9. cience 24: Module 4 For questions 16 and 17, read each question carefully. Decide which of the choices BEST completes the statement or answers the question. Place your answer in the blank space given. 16. Mae can run 7.5 m/s. How far can she run in 8 s? A. 60 m В. 65 m C. 70 m baie D. 75 m 17. The formula used to calculate distance from time and speed is A. d= vt B. d=V t bel V sgel er no bec С. d3 ew D. d =- vt 18. Chase went for a hike. He left at 8:00 A.M. At 10:00 A.M., he took a half-hour rest. Chase returned home at 12:00 noon. While walking, Chase averaged 5 km/h. How far did he hike? oolev beggole zart fertIf you drive at a constant velocity of 30 m/s for 1.5 hrs, what will be your displacement in meters? a. 162000 m b. 108000 m c. 13.3 m d. 270 m